The value of OLEDs, beyond their brightness, is that the electricity which powers and controls them is turned directly into the light the user views.

有机发光两极管除了它们的亮度以外，其价值还在于驱动及控制它们的电流是直接转换成用户所看到的光。

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The new study, written by Donald Light, a visiting professor at Stanford University, claims that European drug firms are more innovative than American ones, in spite of price controls.

斯坦福大学客座教授唐纳德·莱特所做的最新研究中指出即使面临价格管制，欧洲的医药企业的创新性也高于美国企业。

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When there's a lack of light, serotonin converts into melatonin, which controls our sleep.

光线不足时，血清素就会转化为控制睡眠的褪黑素。

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It will depend on what you were doing last, but the black controls helpfully light up when they are useful, and remain dim when they are not.

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About 93 percent of 3, 040 large U.S. hospitals used one or more day lighting or lighting conservation features, including tinted window glass (80 percent), reflective window glass (39 percent), external overhangs or awnings (47 percent), skylights or atriums designed to provide light (57 percent), automatic controls or sensors that increase or reduce lighting in response to the level of natural light (14 percent), and occupancy sensors that reduce lighting when rooms are unoccupied (46 percent).

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Terahertz light - which lies between infrared light like that used by remote controls and the microwaves in the appliance of the same name - has become popular in scanning technology at airports and museums' back rooms because it can extract information without risk of damage.

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